This is the second season opener.Diane stupidly donates Elvis's guitar to a celebrity auction to save face with Amy Hillerman,when she doesn't have it to begin with.In the meantime Nick has received a threat toward his family from a local mob boss.The FBI has him go undercover in Vegas to catch this mob guy.Diane knows Nicks out of town so she tricks Clapper into taking them to Vegas, her idea is to ask Elvis himself to donate his guitar.The girls do a little gambling and even perform in a stage show (accidentally). Nick runs into them and all heck breaks loose.The mob guy ends up behind Bars.Rose falls for one of the Mafia getaway drivers. (thetvdb.com)